JUL 27 1970 UNITED STATES ARMS CONTROL AND DISARMAMENT AGENCY WASHINGTON, D.C. 20451 July 24, 1970 Dear Joshua: On looking further into the background of the con- cept of crimes against humanity, I find my recollection confirmed that it has a considerable and checkered past. There is a meaning, stemming mainly from the Nurenberg trials, which has wide acceptance. A number of attempts have been made to use the concept politically, however, as in the case of nuclear weapons and, in fact, in con- nection with CBW. The enclosed excerpts from reports on the subject may be of interest. I think we would do well to stay away from the term. Sincerely Acting Assistant Director International Relations Bureau Enclosures: Excerpts re crimes against humanity Dr. Joshua Lederberg Department of Genetics Stanford University Stanford, California 94305